Before placing order to the unknown factory or supplier , there are many doubt about the factory or supplier and not sure about whether they are real existing factory or supplier , whether they are reliable and worth of trust , and what is their scale ,etc , client has many questions want to check , but due to language and time lag , it is inconvenient to talk to the suppplier and factory , thus we present this basic service of supplier and factory verification over telephone which is free of charge .